In the ’80s, Slice had a solid hold on the fruit juice-flavored soft drink market thanks to a healthy amount of marketing from PepsiCo. As the years went on, jockeying for soft drink supremacy against the heavy-hitting Sprite and 7-Ups of the world proved to be too much, and by 2009, the drink that bolstered “10% real juice” on the can was exclusively on the shelves of Wal-Mart. From there, it died a quiet death. The cans were so sparse and hard to find you couldn’t even...